Results 61 to 70 of about 254,930 (339)

Superconductivity of non-Fermi liquids described by Sachdev-Ye-Kitaev models

open access: yesPhysical Review Research, 2023
We investigate models of electrons in the Sachdev-Ye-Kitaev class with random and all-to-all electron hopping, electron spin exchange, and Cooper-pair hopping.
Chenyuan Li   +2 more
doaj   +1 more source

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

open access: yesAdvanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani   +13 more
wiley   +1 more source

Long range order and two-fluid behavior in heavy electron materials

open access: yes, 2012
The heavy electron Kondo liquid is an emergent state of condensed matter that displays universal behavior independent of material details. Properties of the heavy electron liquid are best probed by NMR Knight shift measurements, which provide a direct ...
A. C. Shockley   +24 more
core   +1 more source

Determination of Soybean Oil, Protein and Amino Acid Residues in Soybean Seeds by High Resolution Nuclear Magnetic Resonance (NMRS) and Near Infrared (NIRS) [PDF]

open access: yes, 2012
A detailed account is presented of our high resolution nuclear magnetic resonance (HR-NMR) and near infrared (NIR) calibration models, methodologies and validation procedures, together with a large number of composition analyses for soybean seeds.
Doina Costescu   +5 more
core   +2 more sources

Interactions Between 5-Fluorouracil and PAMAM Dendrimers Studies by NMR Spectroscopy

open access: yesChinese Journal of Magnetic Resonance, 2019
Interactions between 5-fluorouracil (5-FU) and PAMAM in D2O solution were studied by NMR spectroscopy. The results of 1H NMR chemical shift titration experiments demonstrated that 5-FU molecules bonded to the surface of PAMAM, and the results of 13C NMR ...
NING Cai-fang   +5 more
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Spin dynamics and disorder effects in the S=1/2 kagome Heisenberg spin liquid phase of kapellasite [PDF]

open access: yes, 2014
We report $^{35}$Cl NMR, ESR, $\mu$SR and specific heat measurements on the $S=1/2$ frustrated kagom\'e magnet kapellasite, $\alpha-$Cu$_3$Zn(OH)$_6$Cl$_2$, where a gapless spin liquid phase is stabilized by a set of competing exchange interactions.
Amato, A.   +12 more
core   +2 more sources

The Origins of Ion Conductivity in MOF-Ionic Liquids Hybrid Solid Electrolytes

open access: yesFrontiers in Energy Research, 2021
Fast Li+ solid ion conductors are a key component of all-solid-state batteries, a technology currently under development. The possible use of metallic lithium as active material in solid-state batteries warrants a quantum step improvement of battery ...
Roman Zettl, Ilie Hanzu, Ilie Hanzu
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

open access: yesAdvanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

NMR relaxation of quantum spin chains in magnetic fields

open access: yes, 2006
We investigate NMR relaxation rates 1/T_1 of quantum spin chains in magnetic fields. Universal properties for the divergence behavior of 1/T_1 are obtained in the Tomonaga-Luttinger-liquid state.
K. Izumi   +4 more
core   +1 more source

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